𝔖 Bobbio Scriptorium
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Brush border membrane and amino acid transport

✍ Scribed by Jonathan J. Neal

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
665 KB
Volume
32
Category
Article
ISSN
0739-4462

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✦ Synopsis

Fundamental differences in midgut structure, physiology, brush border proteins, and transporters among Leptinotarsa decemlineata, lepidopteran caterpi Ilars, other insect taxa, and vertebrates are reviewed. The effects of dietary protein concentration on Manduca sexta midgut amino acid transport and brush border membrane proteins are reported. M. sexta fed diet with reduced protein had elevated levels of leucine aminopeptidase in the brush border membrane.

No changes in amino acid transport or alkaline phosphatase activity due to dietary differences were detected. Changes in brush border proteins could affect the toxicity and pathogenicity of microbial agents. o 1996 WiIey-Llss, Inc.

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## Abstract A comparison of L‐valine and D‐glucose transport was carried out with vesicles of plasma membrane isolated either from the luminal (brush border) or from the contra‐luminal (basolateral) region of small intestinal epithelial cells. The existence of transport systems for both non‐electro